Bird feeder



FIG. 1 is a perspective view of a bird feeder showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a front elevational view thereof; the rear view being the sameas the front shown; and

FIG. 4 is an elevational view taken one side thereof of the oppositeside being the same as the side shown.

The ornamental design for a bird feeder, as shown and described.